This Digital Racing Tire Gauge reads to the tenth of a pound! I had a heavy hand in developing this gauge. Mainly because over the last 18 years of selling tire gauges, my list of wants always exceeded what the manufacturer was willing to modify. Being active in vintage racing and knowing the importance of correct air pressure both on and off the track, I think you'll be as happy as I am with this gauge. It's extremely accurate and reads to the tenth of a pound! Under low light conditions the gauge switches to a blue background for easier reading; in bright light the gauge drops the blue light out. The high flow bleeder valve also allows you to bleed down the air pressure quickly, while the clip on value chuck frees up one hand for other things. Reads 0 - 60 PSI or 0 - 4 BAR and comes packaged securely and snugly in a molded, zippered case. I love this gauge!